html,
body {
    width: 100%;
    height: 100%;
}

.page_root {
    width: 100%;
    height: 100%;
    position: relative;
    /* overflow: hidden; */
    /* background-color: yellow; */
}



.page_root .mask {
    display: none;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 999;
}

#image_show {}

.page_root .mask .btn_list {
    position: absolute;
    height: 80px;
    top: 20px;
    width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
    /* background-color: yellow; */

    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.page_root .mask .btn_list button {
    font-size: 20px;
    color: blue;
    margin-left: 10px;
}



.page_root .tittle {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
}


.page_root .btn_box {
    /* position: relative;
    top: 125px; */
    margin-top: 25px;
    height: calc(90% - 125px);
    /* background-color: aqua; */
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
}

.btn_box .btn {
    width: 80%;
    height: 45%;
    background: #607D8B;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    border: solid 4px #5d3f3f;
    border-radius: 20px;
}

.btn_box .btn img {
    flex: 0.7;
}